FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4323363955> ?p ?o ?g. }

• W4323363955 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> Data assimilation (DA) of remotely sensed leaf area index (LAI) can help to improve land surface model estimates of energy, water, and carbon variables. So far, most studies have used bias-blind LAI DA approaches, i.e. without correcting for biases between model forecasts and observations. This might hamper the performance of the DA algorithms in the case of large biases in either observations or simulations, or both. We perform bias-blind and bias-aware DA of the Copernicus Global Land Service LAI into the Noah-MP land surface model forced by the ERA5 reanalysis over Europe in the 2002–019 period, and evaluate how the choice of bias correction affects estimates of gross primary productivity (GPP), evapotranspiration (ET), runoff, and soil moisture. In areas with a large LAI bias, the bias-blind LAI DA leads to a reduced bias between observed and modelled LAI, an improved agreement of GPP, ET, and runoff estimates with independent products, but a worse agreement of soil moisture estimates with the European Space Agency Climate Change Initiative (ESA CCI) soil moisture product. Bias-blind LAI DA can also lead to unrealistic shifts in soil moisture climatologies, for example when the assimilated LAI data in irrigated areas are much higher than those simulated without any irrigation activated. Furthermore, the bias-blind LAI DA produces a pronounced sawtooth pattern due to model drift between update steps. This model drift also propagates to short-term estimates of GPP and ET, and to internal DA diagnostics that indicate a suboptimal DA system performance. The bias-aware approaches based on a priori rescaling of LAI observations to the model climatology avoid the negative effects of the bias-blind assimilation. They retain the improvements of GPP anomalies from the bias-blind DA, but forego improvements in the root mean square deviation (RMSD) of GPP, ET, and runoff. As an alternative to rescaling, we discuss the implications of our results for model calibration or joint parameter and state update DA, which has the potential to combine bias reduction with optimal DA system performance." @default.
• W4323363955 created "2023-03-08" @default.
• W4323363955 date "2023-03-07" @default.
• W4323363955 modified "2023-10-17" @default.
• W4323363955 title "Comment on egusphere-2022-1137" @default.
• W4323363955 doi "https://doi.org/10.5194/egusphere-2022-1137-rc2" @default.
• W4323363955 hasPublicationYear "2023" @default.
• W4323363955 type Work @default.
• W4323363955 citedByCount "0" @default.
• W4323363955 crossrefType "peer-review" @default.
• W4323363955 hasBestOaLocation W43233639551 @default.
• W4323363955 hasConcept C127313418 @default.
• W4323363955 hasConcept C127413603 @default.
• W4323363955 hasConcept C132651083 @default.
• W4323363955 hasConcept C153294291 @default.
• W4323363955 hasConcept C168754636 @default.
• W4323363955 hasConcept C176783924 @default.
• W4323363955 hasConcept C187320778 @default.
• W4323363955 hasConcept C18903297 @default.
• W4323363955 hasConcept C205649164 @default.
• W4323363955 hasConcept C24552861 @default.
• W4323363955 hasConcept C24939127 @default.
• W4323363955 hasConcept C25989453 @default.
• W4323363955 hasConcept C39432304 @default.
• W4323363955 hasConcept C49204034 @default.
• W4323363955 hasConcept C86803240 @default.
• W4323363955 hasConcept C91586092 @default.
• W4323363955 hasConceptScore W4323363955C127313418 @default.
• W4323363955 hasConceptScore W4323363955C127413603 @default.
• W4323363955 hasConceptScore W4323363955C132651083 @default.
• W4323363955 hasConceptScore W4323363955C153294291 @default.
• W4323363955 hasConceptScore W4323363955C168754636 @default.
• W4323363955 hasConceptScore W4323363955C176783924 @default.
• W4323363955 hasConceptScore W4323363955C187320778 @default.
• W4323363955 hasConceptScore W4323363955C18903297 @default.
• W4323363955 hasConceptScore W4323363955C205649164 @default.
• W4323363955 hasConceptScore W4323363955C24552861 @default.
• W4323363955 hasConceptScore W4323363955C24939127 @default.
• W4323363955 hasConceptScore W4323363955C25989453 @default.
• W4323363955 hasConceptScore W4323363955C39432304 @default.
• W4323363955 hasConceptScore W4323363955C49204034 @default.
• W4323363955 hasConceptScore W4323363955C86803240 @default.
• W4323363955 hasConceptScore W4323363955C91586092 @default.
• W4323363955 hasLocation W43233639551 @default.
• W4323363955 hasOpenAccess W4323363955 @default.
• W4323363955 hasPrimaryLocation W43233639551 @default.
• W4323363955 hasRelatedWork W2112378204 @default.
• W4323363955 hasRelatedWork W2123760686 @default.
• W4323363955 hasRelatedWork W2982072366 @default.
• W4323363955 hasRelatedWork W3005245035 @default.
• W4323363955 hasRelatedWork W3038781067 @default.
• W4323363955 hasRelatedWork W3083198366 @default.
• W4323363955 hasRelatedWork W3120013059 @default.
• W4323363955 hasRelatedWork W4206167704 @default.
• W4323363955 hasRelatedWork W4229685971 @default.
• W4323363955 hasRelatedWork W4322010856 @default.
• W4323363955 isParatext "false" @default.
• W4323363955 isRetracted "false" @default.
• W4323363955 workType "peer-review" @default.